Janice Dickinson has been a fixture in the party scene her entire life. But what changed in 2010? Click on to find out.

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Janice Dickinson checked into celebrity rehab.

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Janice Dickinson’s dramatic 2010 behavioral transformation.

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Katy Perry was famous for her fruity fashion and bubble gum pop, but what happened to the stage beauty in 2010? Find out by clicking on.

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Katy came into her own skin in 2010, polishing up her style in a glam way. She also went from Kiss’ing A Girl to marrying a boy!

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Katy Perry’s dramatic 2010 fashion transformation.

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We thought Lady Gaga couldn’t shock us anymore, but in 2010 she managed to up the ante. Find out how in the next photo.

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Her shocking ensembles continued to escalate and climaxed at the MTV Video Music Awards, when she hit the red carpet dressed in meat.

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Lady Gaga’s dramatic 2010 transformation.

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Kate Gosselin was a frumpy mom with eight kids, until she underwent a dramatic transformation. What happened? Click on to find out.

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Kate hit the red carpet of the Academy Awards, dazzling in designer duds. The famous mother enlisted the help of hair and makeup people—including hairstylist to the stars Ted Gibson, to help her transform into a glam goddess.

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Kate Gosselin’s dramatic 2010 makeover.

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Megan Fox was a Transformers hottie on the way to superstardom, but what changed in 2010? Click on to find out.

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Everything changed, including her face, body and career path. The bombshell stepped out in 2010, looking completely transformed with fuller lips, a seemingly sculpted nose and a much skinnier body. Then Megan traded vows with longtime beau Brian Austin Green and also got replaced in the Transformers franchise with Rosie Huntington Whiteley.

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Megan Fox’s dramatic 2010 all-around transformation.

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After years of singing and performing, Mariah Carey made a bombshell announcement in 2010. What was it? Click to find out.

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Mariah announced that she was pregnant with twins!

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Mariah Carey’s dramatic 2010 life transformation.

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William Shatner had been a household for many, many years as the handsome star of Star Trek. What happened to William, which was so ‘out of this world’ in 2010? Click on to find out.

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Captain Kirk went from hunk to chunk!

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William Shatner’s dramatic 2010 body transformation.

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Jessica Simpson was famous her hot body and soulful voice, but her body morphed in 2010. Click the next photo to see the transformation.